When installing Spectrum connector for SOI, if Spectrum OneClick has enabled SSL and you have already imported the keystore from OneClick server to Spectrum connector server. Also make sure the OneClick credential you have entered during the installation is correct. You are getting the following error in the screen capture during the installation.

<Please see attached file for image>

Please open CA-Spectrum_Connector_InstallDebug.log, if you saw the 

In Spectrum 10.x, Spectrum uses TLS protocol to communicate through SSL and Spectrum connector uses SSLV3 for communication. This is why the communication has been blocked between OneClick and Spectrum connector. 

Spectrum connector version: 2.0.0.xxxSOI 3.x, 4.xSpectrum 10.x

1. Please go to Spectrum OneClick server, open $SPECROOT\tomcat\conf\server.xml file.

2. Find the "Connector" session in the file, replace sslProtocol="TLS" with sslEnabledProtocols="TLSv1,TLSv1.1,TLSv1.2,SSLv2Hello,SSLv3".

3. Below is what it should look like after you make the change for the "Connector" session.

<Please see attached file for image>

4. Please restart Spectrum tomcat service.

5. Run the installation for Spectrum connector again.